Pedal-propelled vehicle structure for amusement scooters

Abstract

A pedal-propelled vehicle structure for amusement scooters is provided. The pedal-propelled vehicle includes a first supporting frame having a hollowed main column in which an elastic member is mounted, and a second supporting frame including an upright slidable bar having one end inserted into the hollowed inside of the hollowed main column on the first supporting frame. A forward-spanning mechanism is connected via a multi-directional mechanism to the second supporting frame. A backward-spanning mechanism is mounted on the second supporting frame. Further, a front adjustment device and a rear adjustment device are mounted on the second supporting frame, the front adjustment device being contacted to the forward-spanning mechanism for adjusting the span of the same, and the rear adjustment device being contacted to the backward-spanning mechanism for adjusting the span of the same. A linkage mechanism is coupled to pedals for transmitting the foot power from the rider to the forward-spanning mechanism and the backward-spanning mechanism. A steering mechanism is mounted on the second supporting frame for the rider to control the moving direction. A brake mechanism is coupled to the front and rear wheels so as to brake the front and rear wheels. A brake control mechanism is mounted on the steering mechanism for controlling the brake mechanism to then control the brake and the forward and backward movements of the vehicle.

What is claimed is: 
     
       1. A pedal-propelled vehicle structure, comprising: a first supporting frame, having a hollowed main column in which an elastic member is mounted;   a second supporting frame including an upright slidable bar having one end inserted into the hollowed inside of said hollowed main column on said first supporting frame to abut on the upper end of said elastic member;   a forward-spanning mechanism connected by means of a multi-directional mechanism to said second supporting frame, said forward-spanning mechanism including a front bar and a front wheel connected to said front bar;   a backward-spanning mechanism mounted on said second supporting frame, said backward-spanning mechanism including a rear bar and a rear wheel connected to said rear bar;   pedal means for a rider of said pedal-propelled vehicle to supply foot power to said pedal-propelled vehicle;   a linkage mechanism, coupled to said pedal means, for transmitting the foot power from the rider to said forward-spanning mechanism and said backward-spanning mechanism;   a steering mechanism, mounted on said second supporting frame, for the rider to control the moving direction of said pedal-propelled vehicle;   a brake mechanism, coupled to said front and rear wheels so as to brake said front and rear wheels, said brake mechanism including: a front brake mechanism coupled to said forward-spanning mechanism,. including a front gear coupled to said front wheel, a front braking piece for applying brake to said front gear, and a front braking assembly for braking said front braking piece, said front braking assembly controlling said front braking piece so as to brake said front gear;   a rear brake mechanism coupled to said backward-spanning mechanism, including a rear gear coupled to said rear wheel, a rear braking piece for applying brake to said rear gear, and a rear braking assembly for braking said rear braking piece, said rear braking assembly controlling said rear braking piece so as to brake said rear gear; and   a transmission mechanism including a first transmission device connected to a brake control mechanism and said front braking assembly, said brake control mechanism being mounted on said steering mechanism for controlling said brake mechanism; a second transmission device connected to said brake control mechanism and said rear braking assembly; and a third transmission device connected to said front braking assembly and rear braking assembly, said transmission mechanism being under control of said brake control mechanism to control said front brake mechanism and said rear brake mechanism to brake said front and rear wheels.     
     
     
       2. The pedal-propelled vehicle structure of claim 1, wherein said first supporting frame includes: a first auxiliary beam horizontally oriented mounted on the bottom of said hollowed main column; a pair of auxiliary supporting wheels mounted on both ends of said first auxiliary beam; and   a first supporting beam and a second supporting beam connected horizontally to one side of said hollowed main column for supporting said linkage mechanism; said first supporting beam, said first auxiliary beam, and said hollowed main column forming a three dimensional structure.   
     
     
       3. The pedal-propelled vehicle structure of claim 1, wherein said forward-spanning and backward-spanning mechanisms are linked by means of an elastic mechanism connected to said hollowed main column on said first supporting frame, said elastic mechanism being used to pull said forward-spanning and backward-spanning mechanisms inwards. 
     
     
       4. The pedal-propelled vehicle structure of claim 3, wherein said elastic mechanism includes: a first spring connected between said front bar on said forward-spanning mechanism and said hollowed main column on said first supporting frame; and   a second spring connected between said rear bar on said backward-spanning mechanism and said hollowed main column on said first supporting frame.   
     
     
       5. The pedal-propelled vehicle structure of claim 1, wherein said upright slidable bar has a flange abutting on said elastic member and said hollowed main column has a narrowed opening for preventing said upright slidable bar from being pulled away from said hollowed main column. 
     
     
       6. The pedal-propelled vehicle structure of claim 1, wherein said second supporting frame further includes a main beam supported on said upright slidable bar and a first connecting piece and a second connecting piece mounted on both ends of said main bean, said first connecting piece being connected via said multi-directional mechanism to said forward-spanning mechanism and said second connecting piece being connected directly to said backward-spanning mechanism. 
     
     
       7. The pedal-propelled vehicle structure of claim 1, further comprising: a front adjustment device mounted on said second supporting frame and located ahead of said forward-spanning mechanism for adjusting the span of said forward-spanning mechanism; and   a rear adjustment device mounted on said second supporting frame and located ion the back of said backward-spanning mechanism for adjusting the span of said backward-spanning mechanism.   
     
     
       8. The pedal-propelled vehicle structure of claim 7, wherein said front and rear adjustment devices are formed with a first mounting piece and a second mounting piece respectively for securing said front and rear adjustment devices respectively on said first and second connecting pieces on said second supporting frame; said first and second mounting pieces being each mounted with a screwing member for firmly securing said forward-spanning and backward-spanning mechanisms in position. 
     
     
       9. The pedal-propelled vehicle structure of claim 1, wherein said linkage mechanism includes a first linkage assembly and a second linkage assembly on both sides of said first supporting frame and connected between said forward-spanning and backward-spanning mechanisms; said first and second linkage assembly each including: a first linkage bar having one end connected to said first supporting beam on said first supporting frame and the other end connected to one pedal;   a second linkage bar having one end connected to said first linkage bar;   a third linkage bar having one end connected to said front bar on said forward-spanning mechanism;   a fourth linkage bar having one end connected to said rear bar on said backward-spanning mechanism; and   a substantially T-shaped linkage piece having a first connecting piece and a second connecting piece which are perpendicularly jointed at a jointing point which is pivotally connected to said second supporting beam on said first supporting frame; wherein said first connecting piece has a first end pivotally connected to one end of said second linkage bar and a second end connected to said second connecting piece; and said second connecting piece has a first end pivotally connected to said third linkage bar and a second end pivotally connected to said fourth linkage bar; and     by means of said linkage mechanism, wherein a foot power is applied to said pedal, the foot power will be transmitted thorough said linkage mechanism to extend said forward-spanning mechanism and backward-spanning mechanism outwards.   
     
     
       10. The pedal-propelled vehicle structure of claim 1, wherein each of said front braking assembly and said rear braking assembly includes: a braking piece having a curved back;   a pivoting bar pivotally connected to said corresponding bar and having one end connected to said corresponding transmission device and the other end connected to said third transmission device;   a braking bar mounted at the pivoting point of said pivoting bar and having an elastic member therein; and   a ball bearing mounted at the tip of said braking bar for allowing said braking bar to slide freely over the curved back of said braking piece;   wherein said braking bar pushes against said braking piece so as to drive said braking piece to apply a braking force.   
     
     
       11. The pedal-propelled vehicle structure of claim 10, wherein each of said front braking piece and said rear braking piece includes a pair of spaced pointed pieces for braking said front and rear gears respectively. 
     
     
       12. The pedal-propelled vehicle structure of claim 1, wherein said brake control mechanism includes: a brake lever pivotally connected to a turnable handlebar on said steering mechanism;   an elastic member having two elongated ends elastically abutting respectively on said brake lever and said turnable handlebar, which allows said brake lever to be restored to original position after being pressed and released;   a mounting device fixed on said handlebar on said steering mechanism, said mounting device being formed with a plurality of positioning holes for positioning of said brake lever; and   a control device mounted on said turnable handlebar for controlling said brake mechanism.   
     
     
       13. The pedal-propelled vehicle structure of claim 1, further including a seating body for the rider to sit thereon. 
     
     
       14. The pedal-propelled vehicle structure of claim 13, wherein said seating body is shaped in the form of an animal. 
     
     
       15. A pedal-propelled vehicle structure, comprising: a first supporting frame, having a hollowed main column in which an elastic member is mounted;   a second supporting frame including an upright slidable bar having one end inserted into the hollowed inside of said hollowed main column on said first supporting frame to abut on the upper end of said elastic member;   a forward-spanning mechanism connected by means of a multi-directional mechanism to said second supporting frame, said forward-spanning mechanism including a front bar and a front wheel connected to said front bar;   a backward-spanning mechanism mounted on said second supporting frame, said backward-spanning mechanism including a rear bar and a rear wheel connected to said rear bar;   a front adjustment device and a read adjustment device mounted on said second supporting frame, said front adjustment device being contacted to said forward-spanning mechanism for adjusting the span of said forward-spanning mechanism, and said rear adjustment device being contacted to said backward-spanning mechanism for adjusting the span of said backward-spanning mechanism;   pedal means for a rider of said pedal-propelled vehicle to supply foot power to said pedal-propelled vehicle;   a linkage mechanism, coupled to said pedal means, for transmitting the foot power from the rider to said forward-spanning mechanism and said backward-spanning mechanism;   a steering mechanism, mounted on said second supporting frame, for the rider to control the moving direction of said pedal-propelled vehicle;   a brake mechanism, coupled to said front and rear wheels so as to brake said front and rear wheels; and   a brake control mechanism, mounted on said steering mechanism, for controlling said brake mechanism.   
     
     
       16. The pedal-propelled vehicle structure of claim 15, wherein said first supporting frame includes: a first auxiliary beam horizontally oriented mounted on the bottom of said hollowed main column; a pair of auxiliary supporting wheels mounted on both ends of said first auxiliary beam; and   a first supporting beam and a second supporting beam connected horizontally to one side of said hollowed main column for supporting said linkage mechanism; said first supporting beam, said first auxiliary beam, and said hollowed main column forming a three dimensional structure.   
     
     
       17. The pedal-propelled vehicle structure of claim 15, wherein said forward-spanning and backward-spanning mechanisms are linked by means of an elastic mechanism connected to said hollowed main column on said first supporting frame, said elastic mechanism being used to pull said forward-spanning and backward-spanning mechanisms inwards. 
     
     
       18. The pedal-propelled vehicle structure of claim 17, wherein said elastic mechanism includes: a first spring connected between said front bar on said forward-spanning mechanism and said hollowed main column on said first supporting frame; and   a second spring connected between said rear bar on said backward-spanning mechanism and said hollowed main column on said first supporting frame.   
     
     
       19. The pedal-propelled vehicle structure of claim 15, wherein said upright slidable bar has a flange abutting on said elastic member and said hollowed main column has a narrowed opening for preventing said upright slidable bar from being pulled away from said hollowed main column. 
     
     
       20. The pedal-propelled vehicle structure of claim 15, wherein said second supporting frame further includes a main beam supported on said upright slidable bar and a first connecting piece and a second connecting piece mounted on both ends of said main beam, said first connecting piece being connected via said multi-directional mechanism to said forward-spanning mechanism and said second connecting piece being connected directly to said backward-spanning mechanism. 
     
     
       21. The pedal-propelled vehicle structure of claim 15, each of said front and rear adjustment devices is formed with a mounting piece for securing said front and rear adjustment devices respectively on said first and second connecting pieces on said second supporting frame; said mounting pieces being each provided with a screwing member for securing said forward-spanning and backward-spanning mechanism firmly in position. 
     
     
       22. The pedal-propelled vehicle structure of claim 15, wherein said linkage mechanism includes a firs linkage assembly and a second linkage assembly on both sides of said first supporting frame and connected between said forward-spanning and backward-spanning mechanisms; said first and second linkage assembly each including: a first linkage bar having one end connected to said first supporting beam on said first supporting frame and the other end connected to one pedal;   a second linkage bar having one end connected to said first linkage bar;   a third linkage bar having one end connected to said front bar on said forward-spanning mechanism;   a fourth linkage bar having one end connected to said rear bar on said backward-spanning mechanism; and   a substantially T-shaped linkage piece having a first connecting piece and a second connecting piece which are perpendicularly jointed at a jointing point which is pivotally connected to said second supporting beam on said first supporting frame; wherein said first connecting piece has a first end pivotally connected to one end of said second linkage bar and a second end connected to said second connecting piece; and said second connecting piece has a first end pivotally connected to said third linkage bar and a second end pivotally connected to said fourth linkage bar; and     by means of said linkage mechanism, whenever a foot power is applied to said pedal, the foot power will be transmitted through said linkage mechanism to extend said forward-spanning mechanism and backward-spanning mechanism outwards.   
     
     
       23. The pedal-propelled vehicle structure of claim 15, said brake mechanism including: a front brake mechanism coupled to said forward-spanning mechanism, including a front gear coupled to said front wheel, a front braking piece for applying brake to said front gear, and a front braking assembly for braking said front braking piece, said front braking assembly controlling said front braking piece so as to brake said front gear;   a rear brake mechanism coupled to said backward-spanning mechanism, including a rear gear coupled to said rear wheel, a rear braking piece for applying brake to said rear gear, and a rear braking assembly for braking said rear braking piece, said rear braking assembly controlling said rear braking piece so as to brake said rear gear; and   a transmission mechanism including a first transmission device connected to said brake control mechanism and said front braking assembly, a second transmission device connected to said brake control mechanism and said rear braking assembly, and a third transmission device connected to said front braking assembly and rear braking assembly;   wherein said transmission mechanism is under control of said brake control mechanism to control said front brake mechanism and said rear brake mechanism to brake said front and rear wheels.   
     
     
       24. The pedal-propelled vehicle structure of claim 23, wherein each of said front braking assembly and said rear braking assembly includes: a braking piece having a curved back;   a pivoting bar pivotally connected to said corresponding bar and having one end connected to said corresponding transmission device and the other end connected to said third transmission device;   a braking bar mounted at the pivoting point of said pivoting bar and having an elastic member therein; and   a ball bearing mounted at the tip of said braking bar for allowing said braking bar to slide freely over the curved back of said braking piece;   wherein said braking bar pushes against said braking piece so as to drive said braking piece to apply a braking force.   
     
     
       25. The pedal-propelled vehicle structure of claim 23, wherein each of said front braking piece and said rear braking piece includes a pair of spaced pointed pieces for braking said front and rear gears respectively. 
     
     
       26. The pedal-propelled vehicle structure of claim 15, wherein said brake control mechanism includes: a brake lever pivotally connected to a turnable handlebar on said steering mechanism;   an elastic member having two elongated ends elastically abutting respectively on said brake lever and said turnable handlebar, which allows said brake lever to be restored to original position after being pressed and released;   a mounting device fixed on said handlebar on said steering mechanism, said mounting device being formed with a plurality of positioning holes for positioning of said brake lever; and   a control device mounted on said turnable handlebar for controlling said brake mechanism.   
     
     
       27. The pedal-propelled vehicle structure of claim 15, further including a seating body for the rider to sit thereon. 
     
     
       28. The pedal-propelled vehicle structure of claim 27, wherein said seating body is shaped in the form of an animal. 
     
     
       29. A pedal-propelled vehicle structure, comprising: a first supporting frame;   a second supporting frame linked to and slidable on said first supporting frame;   a forward-spanning mechanism connected by means of a multi-directional mechanism to said second supporting frame, said forward-spanning mechanism including a front bar and a front wheel connected to said front bar;   a backward-spanning mechanism mounted on said second supporting frame, said backward-spanning mechanism including a rear bar and a rear wheel connected to said rear bar;   pedal means for a rider of said pedal-propelled vehicle to supply foot power to said pedal-propelled vehicle;   a linkage mechanism, coupled to said pedal means, for transmitting the foot power from the rider to said forward-spanning mechanism and said backward-spanning mechanism;   a steering mechanism, mounted on said second supporting frame, for the rider to control the moving direction of said pedal-propelled vehicle;   a brake mechanism, coupled to said front and rear wheels so as to brake said front and rear wheels, said brake mechanism including: a front brake mechanism coupled to said forward-spanning mechanism, including a front gear coupled to said front wheel, a front braking piece for applying brake to said front gear, and a front braking assembly for braking said front braking piece, said front braking assembly controlling said front braking piece so ss to brake said front gear;   a rear brake mechanism coupled to said backward-spanning mechanism, including a rear gear coupled to said rear wheel, a rear braking piece for applying brake to said rear gear, and a rear braking assembly for braking said rear braking piece, said rear braking assembly controlling said rear braking piece so as to brake said rear gear; and   a transmission mechanism including a first transmission device connected to a brake control mechanism and said front braking assembly, said brake control mechanism being mounted on said steering mechanism for controlling said brake mechanism; a second transmission device connected to said brake control mechanism and said rear braking assembly; and a third transmission device connected to said front braking assembly and rear braking assembly, said transmission mechanism being under control of said brake control mechanism to control said front brake mechanism and said rear brake mechanism to brake said front and rear wheels.     
     
     
       30. The pedal-propelled vehicle structure of claim 29, wherein said first supporting frame includes: a hollowed main column in which an elastic member is mounted;   a first auxiliary beam linked in perpendicular to said hollowed main column;   a pair of auxiliary supporting wheels mounted on both ends of said first auxiliary beam;   a first supporting beam linked in perpendicular to said hollowed main column and said first auxiliary beam to form a three-dimensional structure; and   a second supporting beam linked to said hollowed main column;   wherein said first and second supporting beams are used in combination to support said linkage mechanism.   
     
     
       31. The pedal-propelled vehicle structure of claim 29, wherein said second supporting frame further includes: an upright slidable bar slidably inserted in the hollowed inside of said hollowed main column;   a horizontal main beam linked in perpendicular to said upright slidable bar;   a first connecting piece and a second connecting piece linked respectively on the opposite ends of said horizontal main beam;   wherein said first connecting piece is linked via said multi-directional mechanism to said forward-spanning mechanism and said second connecting piece is linked directly to said backward-spanning mechanism.   
     
     
       32. The pedal-propelled vehicle structure of claim 31, wherein said upright slidable bar has a flange abutting on said elastic member and said hollowed main column has a narrowed opening for preventing said upright slidable bar from being pulled away from said hollowed main column. 
     
     
       33. The pedal-propelled vehicle structure of claim 29, further including: an elastic mechanism connecting said forward-spanning mechanism and said backward-spanning mechanism to said hollowed main column on said first supporting frame for pulling said forward-spanning mechanism and said backward-spanning mechanism inwards.   
     
     
       34. The pedal-propelled vehicle structure of claim 33, wherein said elastic mechanism includes: a first spring connected between said front bar on said forward-spanning mechanism and said hollowed main column on said first supporting frame; and   a second spring connected between said rear bar on said backward-spanning mechanism and said hollowed main column on said first supporting frame.   
     
     
       35. The pedal-propelled vehicle structure of claim 29, further comprising: a front adjustment device mounted on said second supporting frame and located ahead of said forward-spanning mechanism for adjusting the span of said forward-spanning mechanism; and   a rear adjustment device mounted on said second supporting frame and located on the back of said backward-spanning mechanism for adjusting the span of said backward-spanning mechanism.   
     
     
       36. The pedal-propelled vehicle structure of claim 35, each of said front and rear adjustment devices is formed with a mounting piece for securing said front and rear adjustment devices respectively on said first and second connecting pieces on said second supporting frame; said mounting pieces being each provided with a screwing member for securing said forward-spanning and backward-spanning mechanisms firmly in position. 
     
     
       37. The pedal-propelled vehicle structure of claim 29, wherein said linkage mechanism includes a first linkage assembly and a second linkage assembly on both sides of said first supporting frame and connected between said forward-spanning and backward-spanning mechanisms; said first and second linkage assembly each including: a first linkage bar having one end connected to said first supporting beam on said first supporting frame and the other end connected to one pedal;   a second linkage bar having one end connected to said first linkage bar;   a third linkage bar having one end connected to said front bar on said forward-spanning mechanism;   a fourth linkage bar having one end connected to said rear bar on said backward-spanning mechanism; and   a substantially T-shaped linkage piece having a first connecting piece and a second connecting piece which are perpendicularly jointed at a jointing point which is pivotally connected to said second supporting beam on said first supporting frame; wherein said first connecting piece has a first end pivotally connected to one end of said second linkage bar and a second end connected to said second connecting piece; and said second connecting piece has a first end pivotally connected to said third linkage bar and a second end pivotally connected to said fourth linkage bar; and     by means of said linkage mechanism, whenever a foot power is applied to said pedal, the foot power will be transmitted through said linkage mechanism to extend said forward-spanning mechanism and backward-spanning mechanism outwards.   
     
     
       38. The pedal-propelled vehicle structure of claim 29, wherein each of said front braking assembly and said rear braking assembly includes: a braking piece having a curved back;   a pivoting bar pivotally connected to said corresponding bar and having one end connected to said corresponding transmission device and the other end connected to said third transmission device;   a braking bar mounted at the pivoting point of said pivoting bar and having an elastic member therein; and   a ball bearing mounted at the tip of said braking bar for allowing said braking bar to slide freely over the curved back of said braking piece;   wherein said braking bar pushes against said braking piece so as to drive said braking piece to apply a braking force.   
     
     
       39. The pedal-propelled vehicle structure of claim 38, wherein each of said front braking piece and said rear braking piece includes a pair of spaced pointed pieces for braking said front and rear gears respectively. 
     
     
       40. The pedal-propelled vehicle structure of claim 29, wherein said brake control mechanism includes: a brake lever pivotally connected to a turnable handlebar on said steering mechanism;   an elastic member having two elongated ends elastically abutting respectively on said brake lever and said turnable handlebar, which allows said brake lever to be restored to original position after being pressed and released;   a mounting device fixed on said handlebar on said steering mechanism, said mounting device being formed with a plurality of positioning holes for positioning of said brake lever; and   a control device mounted on said turnable handlebar for controlling said brake mechanism.   
     
     
       41. The pedal-propelled vehicle structure of claim 29, further including a seating body for the rider to sit thereon. 
     
     
       42. The pedal-propelled vehicle structure of claim 41, wherein said seating body is shaped in the form of an animal.